Imperial Metric Export Import Issues

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CarmeloLabadie
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Joined: Thu Jun 03, 2021 7:25 am
Vensim version: Ventity

Imperial Metric Export Import Issues

Post by CarmeloLabadie »

I exported a set of centerlines from Deswik 2018.2 as an imperial Ventsim file. However, when I opened the file in Ventsim, the program assumed I was working in metric. So my 3000 ft shaft is now 3000 m, and if I switch my units in Ventsim, I now have a ~10,000 ft shaft (3.2808 m : 1 ft).

I double checked that I had chosen "Imperial Project" on the Deswik export and there is too much attribute information that I wanted captured to export my centerlines as a DXF file/ a series of DXF files. I'm not sure if this is a glitch on the Deswik side or Ventsim side. The Deswik file default is metric but project is imperial, for the record.

My work-around:

I wrote down all of my presets (airway size, friction factors, etc) in Ventsim.
I toggled my ventsim file to metric so my absolute values were correct (3000 m shaft).
I modified my Units from 1 ft: 3.2808 m to 1 ft : 1 m.
I toggled my units to imperial. So my shaft is 3000 ft but my presets are messed up by a factor of 3.2808 (or more if there is an exponent in the equation)
I re-wrote my presets based on the information written down in step 1.
However, I have no idea if this is a legitimate work around. My unit conversion is stuck to 1 : 1, and I have to import all files as 'metric' files.
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Joined: Wed Mar 05, 2003 3:10 am

Re: Imperial Metric Export Import Issues

Post by Administrator »

This is not the right forum for you. This is for Vensim (a continuous time based simulation package), Ventsim is different.

You need
https://ventsim.com/
Advice to posters seeking help (it really helps us to help you)
http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391

Units are important!
http://www.bbc.co.uk/news/magazine-27509559
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